echinacean

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English[edit]

Noun[edit]

echinacean (plural echinaceans)

  1. Any sea urchin of the superorder Echinacea.
    • 1996, Carroll Lane Fenton, The Fossil Book: A Record of Prehistoric Life, page 322:
      The echinaceans range from Late Triassic to present-day and are all regular echinoids, with more complex structures than occur in the diademataceans.
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